* Mike Frysinger wrote:
On Tuesday 24 April 2012 03:53:44 Thierry Reding wrote:
The MMC core sometimes reads buffers that are smaller than a complete cacheline, for example when reading the SCR. In order to avoid a warning from the ARM v7 cache handling code, this patch makes sure that complete cachelines are flushed.
this is still wrong. all you've done is bypass the error message without addressing the underlying problem -- you're invalidating too much.
Reading 8 bytes is always less than a cacheline, so we don't have much choice, do we? We could of course always read a whole cacheline even if only 8 bytes are requested, but does that have any advantage over reading 8 bytes and then invalidating the cacheline?
Or maybe I'm missing the point.
Thierry